坚硬的外壳

In short, no matter what kind of buckwheat, the seeds of their end of the shell has a hard and is a type of achene Trigonobalanus, which is extremely rare in other crops.

总之，无论哪种荞麦，它们所结的种子都有一坚硬的外壳并且是三棱型的瘦果，这在其它作物中极为少见。

Crayfish belong to a group of animals called Crustaceans and are part of the phylum Arthropoda.

所有的节肢动物都有坚硬的外壳起到骨骼的作用。

For example, the hard shell of the flaxseed protects the oil inside the seed from heat, light, and oxygen.

例如，亚麻籽坚硬的外壳保护着里面的种子免受热、光和氧气的侵害。

Outdoors all afternoon under a gunmetal sky staking my garden down, I kneeled to the crickets trilling underfoot as if about to burst from their crusty shells; and like a child again marveled to hear so clear and brave a music pour from such a small machine.

户外的整个下午炮铜色的天空下，我拆倒花园的木桩，跪听蟋蟀的合唱脚下那些歌鸣就要从它们坚硬的外壳中爆裂；而我象个孩童一样大为震惊只因听到这么清晰而又英勇的音乐迸涌发自那么小的一个机器。

The primary survival structure of S. sclerotiorum is the sclerotium. A sclerotium is a hard resting structure consisting of a light colored interior portion called a medulla and an exterior black protective covering called the rind. The rind contains melanin pigments which are highly resistant to degradation, while the medulla consists of fungal cells rich in β-glucans and proteins.

三叶草核盘菌的活体结构主要是菌核，菌核是一种坚硬的静态结构，由颜色艳丽的髓质内核和黑色的蛋白质外壳组成，外壳含有对降解具有高度抗性的黑色素，而髓质则由富含β-葡聚糖和蛋白质的真菌细胞组成。

Because hard shells fossilise, and are therefore more readily preserved than soft tissue, scientists had an incomplete and biased view of the marine life that existed during the Ordovician.

由于封存坚硬的外壳，因此比软组织更容易保存，科学家们对海洋生物的存在，在奥陶系不完整和有偏见的观点。

Only then in the similar guinea pig aguti -- forest one kind of large-scale rodent can nip is rotten its hard outer covering.

只有类似豚鼠的刺豚鼠——森林里的一种大型啮齿动物才能咬烂它坚硬的外壳。

It has a hard shell, we have won these fruit, the sun of a sun, as next year's seeds, sometimes it broke down.

它有坚硬的外壳，我们常常把这些果子摘下来，晒一晒，作为明年的种子，有些时候也会把它砸开。

Soon to fall, the small fruit of the sun through the "test" slowly, president of the hard shell, get rotten, you will see there are a very small package, like a child, as it is only an "empty nest", and then stay a little dark, a few more when the completely black.

马上就要到秋天了，小果子经过太阳的&考验&慢慢地会长出坚硬的外壳，弄烂的时候，你会看见里面有一个很小的包，像小孩子一样，只不过是个&空巢&，待到再变黑一点，再过些时候就完全变黑了。

A hungry aardvark digs through the hard shell of a promising mound with its front claws and uses its long, sticky, wormlike tongue to feast on the insects within .

一头饥饿的土豚可以用前爪一直挖通白蚁巢穴坚硬的外壳，然后用它长长的，带有粘性的并且可以像虫子似蠕动的舌头伸进去享受一顿美餐。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。